The space between two 6-in.-long concentric cylinders is filled with glycerin (viscosity (=8.5 times 10^{-3} mathrm{lb} cdot
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The space between two 6-in.-long concentric cylinders is filled with glycerin (viscosity \(=8.5 \times 10^{-3} \mathrm{lb} \cdot \mathrm{s} / \mathrm{ft}^{2}\) ). The inner cylinder has a radius of 3 in. and the gap width between cylinders is \(0.1 \mathrm{in}\). Determine the torque and the power required to rotate the inner cylinder at \(180 \mathrm{rev} / \mathrm{min}\). The outer cylinder is fixed. Assume the velocity distribution in the gap to be linear.
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Related Book For
Munson Young And Okiishi's Fundamentals Of Fluid Mechanics
ISBN: 9781119080701
8th Edition
Authors: Philip M. Gerhart, Andrew L. Gerhart, John I. Hochstein
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